I'd want to see a picture of the engine pad stamp and make it big enough you can see details not just the stamp. The underside looks like it's had a lot of spray bomb restoration work. Don't take me wrong but the underside looks rough and if it's supposed to be restored and they left the bottom like that then I would question the quality of work on the rest of the car.
i dont think the underside has been sprayed, ill have to ask tom. i was told the car has only been repainted one time and has never been taken off the frame. only some frame on stuff. he did say the interior was original